492 results about "Air pollution" patented technology

The invention belongs to the technical field of asphalt pavement repairing, and particularly relates to a local repairing technology of an asphalt pavement, which comprises the following specific contents: detecting a disease range by adopting ground three-dimensional laser scanning or ground penetrating radar, determining a repairing boundary, sampling and detecting the aging degree, the moisture content and the grading type of the asphalt of the original pavement, and determining the repairing quality of the asphalt pavement. According to the method, the bonding strength of the repairing material and the asphalt layer of the original pavement is enhanced by heating and activating the interface of the original pavement and emulsifying the asphalt bonding layer, and matching the repairing material with the shrinkage coefficient of the original pavement and reinforcing and compacting the edge, so that the condition that the repaired position is cracked, loosened and damaged in a short time is avoided; warm-mixed asphalt is adopted, the heating temperature is reduced by 40-60 DEG C, cold-mixed emulsified asphalt is popularized, and the asphalt does not need to be heated, so that release of a large amount of volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs) and dust is effectively avoided, and air pollution is avoided.

The invention discloses a tracing method and system for atmospheric pollution in a chemical industry park, and relates to the technical field of tracing of atmospheric pollution. The method comprises the following steps: determining at least one first pollution source according to an enterprise-pollutant-raw material incidence matrix and at least one pollutant in the chemical industry park; and according to the real-time pollutant concentration data and a Gaussian diffusion model simulation result, screening out an enterprise with a relatively high fitting degree with the real-time pollutant concentration data, and according to a screening result, determining at least one second pollution source. And determining at least one third pollution source according to the position of the at least one pollution source. And determining at least one fourth pollution source in the high-concentration change area. And determining a pollution traceability result. According to the invention, multi-source data are fused to trace the air pollution, the comprehensiveness and timeliness of the data are ensured, and the accuracy of pollution traceability can be improved.

The invention provides multi-parameter air pollution real-time monitoring equipment, and relates to the technical field of air monitoring. A detection sensor is fixed on a bottom plate of the electric control box in a penetrating manner; a rectangular track frame is fixedly mounted below the electric control box; an abutting plate and a square blocking frame which are vertically arranged at an interval are formed in the rectangular track frame, a circular through hole is formed in the abutting plate in a penetrating mode, the abutting plate abuts against and makes contact with the bottom end of the detection sensor, and the circular through hole communicates with an opening in the bottom end of the detection sensor; a peripheral retaining frame is slidably mounted in the rectangular track frame, a metal filter screen is arranged in the peripheral retaining frame in a covering manner, and the metal filter screen is slidably matched with the interval space between the abutting plate and the square blocking frame in a penetrating manner and covers the bottom side opening of the circular through hole. Compared with the prior art, the method has the advantages that the tedious steps that the metal filter screen needs to be detached and taken down, and an external brushing tool is used for manually brushing and cleaning the blockage of the metal filter screen can be omitted, and the efficiency and convenience of the blockage cleaning operation of the metal filter screen can be improved.

This invention relates to the field of special agents for treating air pollution, specifically to a rare earth water-based environmentally friendly urea crystal remover for vehicles and its preparation method. The raw materials for preparing the rare earth water-based environmentally friendly urea crystal remover for vehicles, by weight, include: 0.005-0.2 parts rare earth-based catalyst, 3-10 parts surfactant, 1-3 parts dispersant, 5-10 parts stabilizer, and 80-100 parts deionized water; wherein the rare earth-based catalyst includes at least a cerium-based catalyst. The urea crystal remover provided by this invention has excellent performance, effectively removing urea crystals, and the cerium emission concentration is far below the requirements of the EURO 7 draft (EURO 7 does not require cerium). NOx conversion rate is significantly improved, making it more suitable for vehicles using high-sulfur fuels, and greatly benefiting the control of air pollution from mobile sources. It is also environmentally safe and environmentally friendly.

This invention relates to the field of air pollution control technology, and in particular to a spray tower for effectively purifying air pollution. The spray tower includes an air inlet fixed to the bottom of one side, a suction hood fixed to the upper surface of the spray tower, and an exhaust pipe fixed to the top of the suction hood. An anti-clogging recovery component and a spraying mechanism are installed inside the spray tower, and a collection box is fixed to one side of the spray tower corresponding to the position of the anti-clogging recovery component. This invention utilizes a spray pipe mechanism to enhance the rate of the neutralization reaction through the synchronous rotation of a rotating disk and a rotating block, and enhances the spatial separation of the two solutions through centrifugal force, reducing cross-mixing. This avoids ineffective neutralization of acid and alkali solutions and achieves continuous and efficient treatment. Combined with the anti-clogging recovery component, the activated carbon balls inside the fixed cylinder are promptly recovered and cleaned, ensuring that efficiency is not reduced due to clogging during air pollution purification, and preventing ineffective adsorption of activated carbon balls due to prolonged use.

The invention relates to the technical field of air pollution prevention and control, and discloses a tail gas drying device based on sorbic acid production process, which comprises two groups of drying tanks which alternately operate, the two groups of drying tanks are respectively used as an adsorption tank and a desorption tank, a drying inner cylinder penetrates through the tanks, and an interlayer cavity is enclosed by a first separation assembly and a second separation assembly in the cylinder; the interior is divided into three groups of adsorbent bed layers; the lifting assembly drives the second separation assembly to ascend and descend, and the bed space, the cavity volume and the air outlet size can be dynamically adjusted according to the swelling and shrinking state of an adsorbent in the early and later periods of desorption, so that the problems that an existing drying tank is large in flow resistance due to direct filling of the adsorbent and poor in desorption efficiency are solved; layered design and cavity blocking reduce airflow resistance, secondary adsorption of the lower layer is avoided, sufficient desorption is guaranteed through dynamic adjustment, the desorption efficiency can be improved, the period is shortened, the service life of an adsorbent is prolonged, and continuous and stable tail gas drying is guaranteed.

The invention discloses a method for constructing a health influence prediction model based on multi-source air data coupling, and relates to the technical field of air quality health monitoring, and the method comprises the steps: obtaining multi-source air environment data in a selected space as an environment index, and obtaining a multi-source physiological signal of a person in the selected space as a physiological index; on the basis of the feature vectors of the environment indexes and the physiological indexes, the coupling relation between the air environment features and the physiological features is constructed, modeling is conducted on the nonlinear coupling relation between the air features and the physiological features through a time sequence deep learning model, and the action rule of air pollution accumulative exposure on dynamic changes of the physiological indexes is captured. Through feature extraction and cross-modal coupling, the comprehensive influence rule of air pollution on the blood pressure, blood oxygen, body temperature, heart rate, heart rate variability and blood glucose physiological indexes of the human body can be revealed, and dynamic prediction of health risks can be achieved through a deep learning model.

The invention relates to a PM2.5 concentration prediction method based on RF-RFE and TCN-BiLSTM-Attention, and belongs to the technical field of atmospheric environment monitoring. According to the method, firstly, PM2.5 concentration monitoring data and data of related influence factors such as weather, other pollutants and time characteristics are preprocessed, recursive feature elimination (RFE) is combined with random forest (RF) for feature screening, and a time sequence input sequence is constructed; extracting local time sequence features of the sequence through a time convolutional network (TCN), and capturing bidirectional long-range time sequence dependence features of the sequence by using a bidirectional long-short-term memory network (BiLSTM); an attention mechanism is introduced to endow a BiLSTM output feature vector sequence with a differentiation weight, and key time sequence feature contribution is highlighted; and finally, outputting a PM2.5 concentration predicted value through a full connection layer, and completing model training and optimization based on the training set and the verification set. According to the method, the advantages of TCN, BiLSTM and Attention mechanisms are combined, the precision and stability of PM2.5 prediction are improved, and the method can be widely applied to atmospheric pollution early warning and environmental governance decision making.

The invention belongs to the technical field of environment detection, and particularly relates to atmospheric pollution environment governance detection equipment which comprises a mounting rod, a detection device is mounted at the top end of the mounting rod, a control box is mounted in the middle of the mounting rod, a rotating sleeve sleeves the top end of the mounting rod, and a supporting rod is fixed to one side of the rotating sleeve. A connecting plate is rotationally connected to the side, away from the rotating sleeve, of the bottom end of the supporting rod, a photovoltaic panel is fixed to the bottom end of the connecting plate, rotating plates are rotationally connected to the two sides of the rotating sleeve, and transmission assemblies are arranged below the rotating plates; the wind blows the photovoltaic panel to drive the rotating plate to rotate through the transmission assembly, and the rotating plate drives the protective shell to be closed. The photovoltaic panel is blown by wind power, and the photovoltaic panel drives the protective shell to be closed to cover the detection device, so that the outside of the detection device is protected, and the detection device can be prevented from being damaged due to inaccurate data caused by detection in extreme weather or being smashed by an object in airflow.

The invention discloses an improved Transform-based air quality prediction method and system, and relates to the technical field of artificial intelligence and environmental science, and the method comprises the steps: collecting air pollution data; preprocessing the air pollution data to obtain a multivariable time sequence; feature extraction is carried out on the preprocessed data, and initialization processing is carried out; an air quality prediction model based on the improved Transform network is constructed; and inputting the initialized data into the air quality prediction model to obtain an air quality prediction result. According to the method, on the basis of keeping the original parallel computing and multi-modal adaptation advantages of Transform, the time complexity is effectively reduced, the multi-modal data utilization is optimized, the global representation learning ability and generalization performance of the model are remarkably improved, and the air quality is predicted more accurately.

The invention discloses a zoning collaborative air pollution monitoring method and system, and the method comprises the steps: obtaining multi-source basic data of a monitoring region, calculating a pollution risk index and an attention index, and carrying out the weighting, thereby obtaining a comprehensive priority; dividing into sub-regions of different levels according to the priority, and configuring devices of different types or sensitivities to form a monitoring network; gas concentration and video image data are collected, pollution event comprehensive confidence is generated through fusion analysis, and when the pollution event comprehensive confidence exceeds a threshold value, a pollution event is judged and early warning is performed; the pollutant diffusion trend is predicted based on early warning, and a linkage control instruction for the treatment equipment is automatically generated; a two-factor dynamic partition model fusing pollution risks and regional attention is constructed, and a Bayesian fusion judgment algorithm that only results can be recognized by gas sensing data and videos is combined, so that complete closed-loop control from intelligent point distribution, accurate sensing and traceability prediction to automatic linkage is formed; and the overall efficiency and sustainability of regional pollution prevention and control are remarkably improved.

The invention discloses an environmental pollution detection method and system based on a wireless sensor network, and relates to the technical field of environmental pollution monitoring, and the method comprises the steps: deploying a sensing node set in a to-be-monitored region, collecting and establishing node collection data, and analyzing and establishing self-calibration observation data through an edge calculation unit; configuring adjacent node communication to construct a wireless sensor network and form a temporary cluster; and according to the cluster reconstruction communication topology and the sampling frequency, executing data reconstruction acquisition, inputting a result and self-calibration observation data into a causal backtracking channel for verification, and outputting an environmental pollution detection result. The technical problems that a traditional air pollution detection method is difficult to adapt to a dynamically changing monitoring environment, monitoring coverage is incomplete, data collection precision is insufficient, and pollution sources cannot be traced are solved, air pollution detection coverage is more comprehensive, data are more reliable, the pollution sources can be traced, a complete process from detection to management is formed, and the detection efficiency is improved. And the technical effects of accurate evaluation and effective management and control are achieved.

The invention discloses a three-dimensional integrated environment treatment system for a highway tunnel, and relates to the field of tunnels, a high-voltage electrode is laid on a step surface, and a multi-layer staggered flow guide plate is arranged above the step surface; the multiple stages of step units are filled with negative ion mineral composite material layers. The UV-LED array is integrated above the multi-stage step unit and is used for emitting ultraviolet light with the wavelength of 254nm and / or 365nm; the multi-stage step unit is coated with the photocatalyst coating; the wall washing lamp is arranged at the side part or the bottom of the multi-stage step unit and is used for irradiating a gas-water mixture flowing through the step; the water circulation purification unit is arranged below the multi-stage step unit and used for collecting and purifying waterfall water flow, and purified water flows back to the first water outlet end to be recycled. According to the invention, light pollution, noise pollution and air pollution are treated as an integral system. And the integrity and the collaboration of the three-dimensional integrated environment treatment system are realized.

The invention belongs to the technical field of impact type inertial dust removers, and discloses an impact type inertial dust remover for air pollution abatement and a using method thereof.The impact type inertial dust remover for air pollution abatement comprises a tank body with a self-filtering unit, and the tank body is provided with an air inlet pipe, an air outlet pipe and a spiral channel; the spiral channel is positioned between the tank body and the air outlet pipe; a flow guide ring is fixed in the tank body and located below the spiral channel, and a dust catching unit is arranged between the flow guide ring and the air outlet pipe. The dust catching unit comprises a mounting frame, a dust catching mechanism and a power mechanism, the mounting frame is composed of two vertical plates and two ring bodies, the two ring bodies are fixed in the tank body through the two vertical plates, and the two ring bodies are located above and below the two vertical plates respectively; according to the dust treatment device, the dust treatment effect can be guaranteed.

The invention relates to the technical field of air pollution control, in particular to an air pollution denitration and desulfurization tail gas purification method which comprises the following steps: rotational flow spray desulfurization (adopting nanoscale composite absorbent slurry to efficiently absorb SO2 and remove particulate matters in a rotational flow reactor), two-stage catalytic denitration (using a nano-catalyst to promote NOx reduction in a low-temperature region, and using a high-temperature catalyst to remove the particulate matters in a low-temperature region). In the high-temperature area, a vanadium-tungsten-titanium-based catalyst is loaded through a novel honeycomb ceramic carrier to strengthen the reaction), deep collaborative purification is carried out (residual pollutants and aerosol are further removed by utilizing electrostatic precipitation and oxidative adsorption coupling), and an intelligent regulation and control system is used for optimizing the ratio of an absorbent, the temperature of the catalyst and flow velocity parameters in real time. According to the method, the problems of catalyst poisoning, high energy consumption and insufficient treatment efficiency in a traditional process are solved through a nano material modified absorbent, a temperature gradient catalytic reaction and a multi-pollutant synergistic removal mechanism. The desulfurization efficiency of the system is greater than or equal to 98%, the denitration efficiency is greater than or equal to 97%, the particulate matter emission is less than or equal to 10mg / m < 3 >, the SO2 is less than or equal to 35mg / m < 3 >, and the NOx is less than or equal to 50mg / m < 3 >

The invention discloses a natural gas heating waste heat utilization device of a tentering setting machine, and relates to the field of cabinet air conditioners. Comprising a combustion tank, a filter box and a heat exchange tank, a gas inlet pipe is arranged at the lower end of the combustion tank, an exhaust pipe is arranged on one side of the combustion tank, a heating structure is arranged in the combustion tank, high-temperature waste gas generated by the tentering setting machine enters the combustion tank through the gas inlet pipe, and a natural gas igniter in the combustion tank is ignited; oil and combustible impurities in the high-temperature waste gas are combusted, so that the high-temperature waste gas is fully combusted, heat generated by combustion heats a heating pipe, relatively clean high-temperature waste gas is obtained after combustion, the high-temperature waste gas enters a filtering box through an exhaust pipe, and under the action of a dust filtering plate in the filtering box, the high-temperature waste gas is conveniently filtered; impurities are prevented from entering the heat exchange tank and influencing the heat exchange tank, and air pollution after discharging is avoided.

An intelligent networked energy recovery ventilator includes a main body, a filtering component, an air guiding fan, a heat exchange core, a host driving controller and a gas detection module. The gas detection module is disposed in the main body and electrically connected to the host driving controller. The gas detection module detects temperature, humidity and air pollution in the air to generate detection data, the detection data is transmitted to a networked cloud computing service device through IoT communication, and the networked cloud computing service device collects, analyzes and monitors the detection data in real time and intelligently selects a control instruction for transmitting to the gas detection module to control the host driving controller to enable the air guiding fan and dynamically adjust operation frequency and output air volume of the air guiding fan, thereby achieving gas exchange and heat exchange between indoor field and outdoor field.

The application provides a high-efficiency and accurate treatment equipment for air pollution control, and belongs to the technical field of air pollution control, which comprises a reaction box body and a spraying area, an adhesion area, an evaporation area and an adsorption area, the spraying area is provided with nozzles and air vents, the adhesion area is provided with a plurality of bending channels, the inner wall of the bending channel is provided with adhesion, the adsorption area is provided with a plurality of exhaust channels, the exhaust channel is provided with a plurality of adsorption mechanisms, the adsorption mechanism comprises two slidingly connected support frames, a sliding block and a driving assembly, the distal ends of the two support frames are provided with connecting shafts, the sliding block is slidingly connected to the inner wall of the exhaust channel, the connecting shaft of one support block is hinged to the sliding block, and the other connecting shaft is hinged to the inner wall of the exhaust channel; the support frame is provided with an activated carbon layer and a heating layer which are arranged at intervals, and the driving assembly is connected with the sliding block. The high-efficiency and accurate treatment equipment for air pollution control improves the treatment effect and efficiency of the polluted air.

This invention discloses a method, apparatus, and storage medium for short-term prediction of TSP concentration in ports. The short-term prediction method includes: acquiring historical monitoring data of TSP concentration and cleaning the concentration data; decomposing the cleaned TSP concentration data into N sets of time series data, wherein the first N-1 sets of time series data have periodic variation characteristics, and the Nth set of time series data has random fluctuation characteristics; constructing N-1 periodic time series prediction models and one random time series prediction model for each of the N sets of time series data; and finally, summing the prediction results of the N time series prediction models to obtain the predicted port TSP concentration. This invention can solve the problem of decreased prediction accuracy caused by the non-stationarity and randomness of TSP concentration data over time, improve the reliability of short-term prediction results of port TSP concentration, and is of great significance for the prevention and control of air pollution in ports.

The invention relates to the technical field of air purification, in particular to an air filter device for preventing and controlling atmospheric pollution, which comprises a casing, a mounting hoop and a plurality of through grooves formed in the outer side of the casing, a plurality of arc-shaped plates are arranged on the inner side of the casing and form a cylinder, flexible filter plates which are connected with one another are arranged on the outer sides of the arc-shaped plates, and the through grooves are formed in the outer side of the casing. According to the air filter device for preventing and treating the atmospheric pollution, the arc-shaped plates are driven to deform through the arranged filter adjusting mechanisms, the flexible filter plates connected with one another are driven to stretch out and draw back synchronously, and therefore the air filter device for preventing and treating the atmospheric pollution can be used for preventing and treating the atmospheric pollution; when the pollution concentration suddenly rises, the filtering area can be increased, the filtering speed is prevented from being too high, the pressure drop suddenly rises and the filtering efficiency is prevented from being reduced, when the concentration is low, the area is reduced, the filtering capacity redundancy is reduced, the energy consumption and the operation and maintenance cost are reduced, and the filtering requirements in different environments are met.

The utility model relates to the technical field of drilling machines for furniture production and manufacturing, and discloses a drilling machine with a scrap blowing assembly for furniture production and manufacturing, which comprises a machine body, a telescopic cylinder is fixedly mounted at the top of the machine body, and a control block is fixedly mounted on the surface of the telescopic cylinder. Through the arrangement of the protection assembly, during use, a control block sliding downwards can abut against a sliding rod and a sliding plate to slide downwards, the sliding plate slides downwards to drive the sliding rod to slide on the surface of a rotating shaft and drive the rotating shaft to rotate, and the rotating shaft can drive a reciprocating lead screw to rotate; the reciprocating lead screw rotates to drive the protection frame to slide upwards in the workbench through the control panel, so that the protection frame can block the chippings, the blocked chippings fall into a collecting plate of the workbench through a groove in the top of the workbench to be stored, the chippings are prevented from flying in the cleaning process, and the cleaning efficiency is improved. And the later cleaning difficulty and the air pollution are reduced.

This utility model relates to the field of detection equipment technology, specifically an air pollution detection device, including a connecting plate. Three sets of triangular legs are hinged to the outer surface of the connecting plate. A fixing plate is fixedly mounted on the upper end face of the connecting plate. A groove is formed on the upper end face of the fixing plate. A detection device base is provided on the upper side of the fixing plate. An inner cavity is formed inside the fixing plate, and a threaded rod is rotatably connected inside the inner cavity. The end of the threaded rod is helically connected to a threaded tube. This utility model, through its quick-installation structure, allows the detection device to be quickly and easily installed on a support device, effectively simplifying the traditional installation process, saving operation time, and significantly improving installation efficiency. Simultaneously, this structure enhances the connection stability between the device and the support, reducing data errors caused by loosening, thereby improving the accuracy and reliability of the detection work. It is suitable for air monitoring needs in various environments.

The invention relates to the technical field of paint spraying equipment, in particular to an efficient environment-friendly paint spraying device for house building decoration, which is characterized by comprising a movable plate trailer, and a paint box is mounted on the movable plate trailer; the spraying mechanism is mounted on the movable plate trailer and connected with the paint box; the angle adjusting mechanism is connected with the spraying mechanism through a supporting shaft and used for driving the spraying mechanism to rotate; and the peculiar smell treatment mechanism is mounted on the spraying mechanism and is used for treating the paint sprayed by the spraying mechanism and absorbing peculiar smell. The paint spraying angle of the spraying nozzle is adjusted according to requirements, spraying is more uniform, and material waste is reduced; the device is convenient to operate, and the working efficiency is greatly improved; odor scattering is reduced through the separation cover, the odor treatment device sucks away odor air and adsorbs odor through activated carbon, and therefore air pollution is reduced.

A slurry reactor liquefied gas desulfurization device and a desulfurization method thereof relate to the technical field of liquefied gas treatment, and comprise a fixed bed reactor, a mercaptan removal tank, a water washing tank, an alkali liquor oxidation tower and an alkali liquor tank, a top inlet of the fixed bed reactor is communicated with liquefied gas obtained by desulfurization of a lean amine solution through a pipeline, a bottom outlet of the fixed bed reactor is communicated with a top inlet of the mercaptan removal tank through a pipeline, and a top outlet of the mercaptan removal tank is communicated with a top inlet of the washing tank through a pipeline; an outlet in the top of the washing tank is communicated with a refined liquefied gas pipe network through a pipeline; a bottom outlet of the mercaptan removal tank is communicated with a bottom inlet of the alkali liquor oxidation tower through a pipeline, a bottom outlet of the alkali liquor oxidation tower is communicated with a top inlet of the mercaptan removal tank through a pipeline, and one side of the lower end of the alkali liquor oxidation tower is connected with an air inlet pipeline; according to the method, mercaptan in liquefied gas can be removed, sulfur dioxide is prevented from being generated after combustion, acid rain and air pollution are reduced, meanwhile, consumption of alkali liquor can be reduced, and the discharge amount of waste alkali liquor is reduced.

This invention provides a silver-based SCR catalyst, its preparation method, and its application, belonging to the field of air pollution control technology. The preparation method of the silver-based SCR catalyst provided by this invention includes the following steps: impregnating alumina hydroxyaluminate in a soluble silver salt aqueous solution to obtain a catalyst precursor; subjecting a portion of the catalyst precursor to a first calcination at 450–550°C to obtain a first calcined product; subjecting the remaining catalyst precursor to a second calcination at 850–950°C to obtain a second calcined product; and mixing the first and second calcined products to obtain the silver-based SCR catalyst. The preparation method provided by this invention is green and low-cost. When the obtained silver-based SCR catalyst is used for flue gas denitrification, it can maintain a high NO conversion rate from low to high temperatures.

The application provides a spraying tower for industrial waste gas treatment of air pollution, and relates to the technical field of spraying towers, which comprises a tower body and a filler piece. An air inlet is arranged below one side of the tower body, and an air outlet is arranged at the top of the tower body. The filler piece is arranged inside the tower body, and at least two groups of filler pieces are arranged. A matching spraying assembly is arranged above the filler piece. The filler piece comprises an adjusting assembly and adjusting plates. A plurality of groups of adjusting plates are arranged on the adjusting assembly at equal angles. The adjusting assembly is used for driving the plurality of groups of adjusting plates to move synchronously to change the inner diameter of the spraying tower. Flexible fences are connected between adjacent two groups of adjusting plates. The adjusting assembly can drive the plurality of groups of adjusting plates to move synchronously, and dynamically change the inner diameter of the cavity, so as to flexibly adjust the effective accumulation thickness of the filler and the ventilation section, realize the adaptation of one machine to multiple waste gas treatment conditions, and greatly improve the universality of the equipment.

This invention relates to the field of air pollution monitoring technology and discloses an air pollution discrimination method and device based on machine learning. The method comprises the following steps: inputting pollution source attribute information and monitoring data from the first and second time periods into a pollution feature model to obtain pollution feature vectors; determining candidate pollution sources similar to the baseline pollution source type based on vector correlation; inputting the feature vectors of the candidate pollution sources and historical periodic monitoring data into a discrimination model trained with the baseline pollution source as a positive sample to obtain the pollution type discrimination result. The pollution feature model extracts multi-dimensional spatial distribution vectors from a spatiotemporal feature model to initialize the network layer and updates parameters dimensionally. The discrimination model combines dynamic monitoring data and feature vectors to achieve discrimination. The device includes units for feature generation, correlation analysis, and type discrimination. This solution improves the accuracy and efficiency of air pollution discrimination through multi-dimensional data fusion and model optimization.

The application discloses a waste gas purification device with a detection effect, and relates to the technical field of air pollution. The waste gas purification device with the detection effect comprises a purification device, a power device arranged on the upper side of the outer surface of the purification device, a purification device box, an inlet and outlet base fixedly connected to the left side of the outer surface of the purification device box, and a fixed pipe fixedly connected to the left side of the outer surface of the inlet and outlet base. The waste gas purification device with the detection effect is provided with the power device arranged on the upper side of the outer surface of the purification device and a rotating motor arranged in the power device. When the rotating motor is started, the rotating circular shaft drives the fan-shaped gear plate to move up and down. Since the left side of the outer surface of the fan-shaped gear plate is overlapped with the outer surface of the pushing gear rod, the rotating cylinder is driven to rotate, and the filter cylinder is driven to rotate. The rotating of the filter cylinder can rotate the filtering surface, reduces the frequency of manual replacement, increases the working period, and reduces time and manpower.

The present application relates to the field of air pollution prevention and control in advanced environmental protection industry, and particularly relates to a flue gas desulfurization system with recycling of desulfurizer. The flue gas desulfurization system comprises: a desulfurization device, comprising: a rough desulfurization device and a fine desulfurization device; a flue gas shunting pipeline, an inlet of which is connected to a total flue gas inlet, a first outlet of which is connected to a flue gas inlet of the rough desulfurization device through a rough desulfurization branch pipeline, and a second outlet of which is connected to a flue gas inlet of the fine desulfurization device through a fine desulfurization branch pipeline; a first new desulfurizer injection port, which is arranged in the fine desulfurization branch pipeline and / or the fine desulfurization device, and which sprays the primary use of new desulfurizer into the flue gas; and a recycled desulfurizer injection port, which is arranged in the rough desulfurization branch pipeline and / or the rough desulfurization device, and which sprays the at least once used recycled desulfurizer into the flue gas. In the present application, the sulfur capacity of the recycled desulfurizer is used to achieve the rough desulfurization of the flue gas in the rough desulfurization device, and the maximum utilization of resources is achieved.

The invention discloses wet-process mineral powder separation and iron removal equipment based on air pollution control, and relates to the technical field of environment-friendly mineral powder iron removal, the wet-process mineral powder separation and iron removal equipment comprises a support frame, and further comprises a shunting mechanism, a low-friction magnetic adsorption separation mechanism, a low-friction discharging mechanism and a rolling water removal mechanism; the low-friction magnetic adsorption separation mechanism is connected with the flow dividing mechanism and is used for separating iron in the ore pulp from the ore pulp and outputting the iron out of the flow dividing mechanism by utilizing a low-friction technology after separation; the low-friction magnetic adsorption sorting mechanism is mounted, so that the problem that a dense medium rubs the surface of a material separation barrel due to asynchronism of the material separation barrel and a magnet is solved, friction to the material separation barrel is reduced, and the service life of the material separation barrel is guaranteed; a low-friction discharging mechanism and a rolling dewatering mechanism are installed to be matched with a low-friction magnetic adsorption sorting mechanism, so that the situation that heavy media slide down along a material separation barrel to be stacked at the position of a discharging opening, and the service life of a roller is affected by friction is avoided, and the situation that other substances are excessively taken out by the heavy media is avoided; the later-stage further separation treatment efficiency is improved.